Police know exactly which three guns were used to shoot seven out of the thirteen men murdered since May 2009, but the weapons remain on the streets.Detective Chief Inspector Nicholas Pedro said yesterday that firearms have been recovered in some of the other killings since the outbreak of gang warfare, but declined to say which.The news of the weapons emerged over the course of two shooting trials in the past three months.The most recent saw Middletown gang member Antonio Myers convicted yesterday of killing 42 gang member Kumi Harford.His trial heard that he and an accomplice used two guns to carry out the slaying. The weapons were traced by gun expert Dennis McGuire through analysing unique markings on bullets and casings found at the scene.A .40 semi-automatic gun was also matched to the murders of Kenwandee Robinson, Perry Puckerin, and Frederick Maybury over the course of 2009 and 2010.It was also used to shoot Mr Harford’s brother Jakai, plus Michael Adams, Daniel Cox, Kenneth Burrows and Roger Spencer. They all survived.All the victims, except Mr Maybury, Mr Spencer and Mr Burrows were members of the 42 gang according to police expert Alexander Rollin.A 9mm revolver used in the Kumi Harford killing was used to injure David Godwin and murder Shane Minors, who also had connections to 42.Sgt Rollin said gang members share guns which are kept in a communal hiding place as they do not have access to multiple weapons.The trial of alleged Money Over Bitches gang member Marico Bassett last month for shooting at Randolph Lightbourne in Sandys in July 2010 also heard how police tracked the same weapon back to two murders and three non-fatal shootings which also occurred in Sandys.The weapon, which has not been recovered, was used to kill 24-year-old Dekimo Martin in May 2010 and 29-year-old Colford Ferguson in February 2011. The same gun was used in non-fatal shootings in March and August last year.The jury could not reach a verdict over allegations that Mr Bassett pulled the trigger on Mr Lightbourne, and a retrial is expected. He was convicted of possessing live bullets found during the investigation.The trial of Quincy Brangman in December last year for shooting and injuring Nathan Darrell in Sandys heard similar evidence that the same 9mm Glock had been traced back to two other non-fatal shootings, in St George’s and Paget. That weapon has not been found either, according to evidence in the trial.Speaking after the Myers verdict yesterday, Det. Chief Insp. Pedro told The Royal Gazette he did not want to comment on guns relating to specific cases.However, he said: “What we have seen is that a very small number of firearms are responsible for a very good portion of the murders and attempted murders we’ve had, going back to May 2009.”He said seven firearms, two air pistols and an imitation gun were taken off the streets last year and added: “We have murder cases where we recovered firearms that have been responsible for murders going back to May 2009.”